Many mobile applications need to work in areas with no or limited cellular coverage. If you as a developer want to provide mapping functionality, there are a few ways to do this, but the best way would be to use a map framework that you can use either online or offline. The Mapbox SDK for iOS provides the capability to download offline map tiles and then store them on the user’s phone for use in a map view later. I’ve used this offline functionality to create a hiking app for the New Mexico mountains and to provide maps for kids with iPads on road trips.
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